Street-lamp



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G P.GANSTE R.- Street-Lamp. 7 No. 227,760. Patented May-18,1880.

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' G. P. GANSTER.

Street-Lamp. N J Q- Patented May 18, I880.

0 k 7 3 W JET 7 7 ATTORNEY 44 PETERS, PHOTD-LITHOGRAPHER, WASHINGTON, D. c

' To all whom tt may concern:

understood that it is composed of proper wheels ing is quite strong. I journal in the top ofthc I UNITED STATES PATENT Orrice.

GEORGE P. GANSTER, -READING, PENNSYLVANIA.

STREET-LAM P.

SPECIFICATION forming part of Letters'Patent No. 227,760, dated May 18, 1880,

Application filed June 17, 1879.

I lating power in the spring, provide for running the clock and the very slight blowerwheel during the longest days.

The force of the ascending current, after being slightly checked by being compelled to work the light screw-wheel, is allowed to impinge against an orifice which communicates through proper passages with a space in the top of an extended vessel containing gasoline or analogous volatilefluids. The air thus inducted is fresh air mingled with a small proportion of the products of combustion from the burner.

The current of warm air which flows out of the top of the lamp, after circulating over the gasoline and absorbing the vapor thereof, flows down through pipes or passages provided and is brought to the burners. 1

The accompanying drawings form. a part of this specification, and represent what I consider the best means of carrying out the invention.

Be it known that I, GEORGE P GANSTER, of Reading, Berks county, Pennsylvania, have invented certain new and useful Improvements relating to Street-Lamps and an alogouslamps, of which the following is a specification.

. .The invention is intended to be use'd, in 0011- nection with some of the improvements secured to me by previous patents, for lighting and extinguishing or raising and suppressing the flame mechanically. I maintain a small flame carefully shielded from being extinguished by accident during the entire day, or such period as the light-is not required, and at a stated hour the cook or valve is opened and allows the gaseous combustible to flow out from the main burner. The jet, being ignited from the small flame, yields a bright light until the proper time arrives when the mechanism shall shut off the flow from the main burner again.

I propose in some or most cases to use clockwork to control the determination of the periodsrequired for these movements. The in- Figure 1 is a side elevation, showing the vention now to be described maybe used with lamp with one standard broken away. Fig. any adequate mechanism for that purpose; 2 is a plan view. Fig. 3 is a view of the upbut I will describe it as clock-work, it being per part alone as seen from below. In this figure the wind-wheel is shown, which receives and connections with a proper escapement, motion from ascending currents of air and which need not be specifically described. actuates the mechanism below. Fig. 4; is a I have discovered and practically worked top view of the upper part with the air-supply cap, and wind-wheel removed. A porflgure is broken away to show the leads the light hydrocarbon fluid down to the burner, and to show one of the partitions in the oil-vessel. Fig. 5 is a partial side elevation, partly in section; Fig. 6, a detail view, and Fig. 6 a side elevation. I

Similarletters of reference indicate like parts in all the figures.

A is the fixed framework of an ordinary street-lamp, which, it will be underst0od,is supported upon a postand equipped with glass, adapted to serve all the ordinary uses of such a structure. The bottom is perforated to allow the induction of air without being much affectedby gales of wind. The top is formed with a round neck, A, capped with a loosefitting cover, A suflicicnt space being provided between A and A to allow the free escape of the warm current of air rising from the lamp when both burners are in operation.

at is a casing properly formed to inclose the pipes, tion of this orifice which out means for operating the clock-work or analogous mechanism by the current of air which rises from the flame during the period while the main burner is lighted; also means for actively driving air in contact with the surface of a quantity of light petroleum or analogous volatile hydrocarbon and causing it to be supplied with proper force to the burners. The small burner may be supplied by the action of a small blower revolved by the same clock- I work which determines the periods for the action; but I find the gravity of the vaporloaded air to be in practice sufflcient.

The current of air rising from the flame in the night or while the main burner is operatlamp a light metallic screw having a number of blades, and connect this with proper mechanism to wind up a spring connected with the clock-work. I utilize this force to not only drive the clock-work during this period while the main burner is serving, but, by aceuma mounted in the vessel I clock work. The gaseous material to be burned is simply air saturated with hydrocarbon vapor. It is supplied through the action of gravity and of the force due to the impact of the strong current from the flame. I maintain the flame during the day by means of a small burner, d, concealed within aprotectingcase. that described in my patent dated March 12, 1878, No. 201,237.

The small burner remains constantly burning. An'easily-working valve is operatedby the clock-work in m to let on the gas and shut it off from the main burner at the proper times.

G isa horizontal screw wheel of sheet metal, mounted on a light shaft, g, and giving motion through a small pinion, a to the large gear- Wheel H, fixed on the upright shaft h. This shaft it leads down and connects with the mechanism in the casing m. When the large burner is in operation the strong flame induces a suflicientupward current through the neck A of the lamp to give a reliable and rapid revolving motion to the wheel G, and thus, through the connections, to operate the clock mechanism and blower in the casing on.

I supply the gasoline through an aperture,

in a ring-like vessel, I, which forms the main top of the lamp. If the lamp is square, as represented, this vessel I should be of square outline. There must always be a sufficient space in the center for the outflow of the air from the lamp.

The filling-orifice I being tightly stopped, the volatile fluid and the vapor arising therefrom are imprisoned, except by my peculiar ventilation, which allows the vapor to escape and supplies fresh air to be circulated in the upper portion. 7

J J are pipes mounted on the top of the frame-work, and communicating, by means of the aperture J, with the space in the interior of the lamp. The aperture is favorably presented to receive the force of the currentrising from the lamp. This force is softened and controlled by the check received in passing the screw-wheel G, but is suflieient, on arriving at the top, to drive in the air with appreciable force through the orifice and thus through the pipes J- into the top of the ringlike vessel I. Each pipe leads into this vessel closely adjacent to partitions I which are p and extend from thetop nearly to the bottom. These partitions divide the air-space in the top of the vessel I into two parts, but they allow the gasoline to flow past under the partitions and maintain a level surface.

The air delivered into the vessel I through the pipes J is caused to flow along over the surface of the volatile fluid until it arrives at points near the opposite partition, where it finds exit-orifices in the upper ends of pipes K, which latter extend up perpendicularly to a level above the surface of the gasoline and receive the air saturated with the vapor of the gasoline and supply it to the burners D d.

The constructionof this is similar to' street-lamps and Modifications may be made in many of the details. The screw-wheel G may be made with a greater or less number of vanes or blades. The roof or covering A may be more extended, so as to cover a greater proportion of the top surface of the fluid reservoir or rin glike vessel I. The latter may be made circular instead of square. One top tube J may serve instead of two. One pipe K may serve to carry down the vapor-laden air from the reservoir I to the clock-casing m.

Various styles of clock mechanism may be employed; but I esteem it essential, from considerations of economy, that only the simplest forms be used.

It will be observed that the roof or cover A by projecting out over a considerable proportion of the top surface of the ring-like vessel I,

serves to warm the vessel in winter by keeping the upper surface of the vessel bathed in the current of warm air rising from the lamp, and serves to moderate the temperature in the day-time in summer by shielding the vessel from a portion of the heat of the sun. The general effect is to equalize the temperature.

Although the screw-wheel or other windwheel G will not be revolved with force, if, at all, except when a strong light is on in the night, I propose to employ a sufficient spring in the clock-casing m to accumulate suffici'ent force during the night time to enable the clock to run during the succeeding day by the force of the spring.

What I claim as my improvement in mechanism for increasing and suppressing lights in analogous lamps is as foL lows:

1. The wind-wheel G, arranged above the arising products of combustion, in combina tion with the clock-work contained in the easing m, and with means operated thereby for supplying and suppressing the gas, as specifled.

2. The top tube or tubes J, with the orifice J, arranged to induct the air by the force of the ascending current, in combination with the ring-likc vessel or elevated reservoir I, and with the pipe or pipes K, leading downward therefrom to the burners below, arranged to conduct the air in a warm state along the surface of the volatile hydrocarbon in the vessel I, as and for the purpose herein specified.

' 3. The provisions, I I J J K, for receiving and conducting downward a portion of the ascending current to be supplied to the flame, in combination with the wind-wheel G and suitable connections for communicating mechanical power to controlling mechanism within the casing m, all substantially as and for the purpose herein specified.

In testimony whereof I have hereunto set my hand this 11th day of June, 1879, in the presence of two subscribing Witnesses.

GEO. P. GANSTER.

Witnesses: Y

J os. H. ADAMS, OSCAR P. GREENE. 

